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Sharpening Blocks
Brand: American Science & Surplus
Diamonds Are for Toolboxes. Hone on down to a cutting edge with this set of (3) diamond-coated, and color-coded, sharpening blocks at 150, 300 and 400 grit. Each is 6" x 2" x 1/8" thick on a plastic backing and has cheese-grater vents. We'd glue them onto a 2-by-2 and add a handle to the fourth side or one end, but we're like that.
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